Section 2: Installation & Setup
CP2000-XB Setup Guide
2-7
020-100250-02 Rev. 1 (06-2009)
2.2.4 Other Considerations
Other considerations and tips that can help improve your installation:
• Keep the ambient temperature constant and below 35°C (95°F). Keep the projector away from heating and/
or air conditioning vents. Changes in temperature may cause drifts in the projector circuitry, which may
affect performance.
• Keep the projector away from devices that radiate electromagnetic energy such as motors and transformers.
Common sources of these include slide projectors, speakers, power amplifiers, elevators, etc.
• Choose the best screen size for the application. Since more magnification reduces brightness, use a screen
size appropriate for the venue but not larger than required. Installing a large screen in a small room is similar
to watching television at a close range; too large a screen can overpower a room and interfere with the over-
all effect. A good rule of thumb is to be no closer than 1.5 times the width of the screen.
2.3
Projector Position and Mounting
Your installation site, the available screen, and ambient lighting all affect where the projector should be
positioned. In addition, both
throw distance
(the distance between the projector and screen) and
vertical
position
(the height of the projector in relation to the screen) must be determined for every new installation.
Both depend on the screen size and lens type you are using. Make sure that the room can accommodate the
required location of the projector for the chosen screen size.
2.3.1 Positioning at a Port Window
With the projection head secured on a suitable cart, position the unit so that the front bezel is less than 2 feet
from the theatre’s port window wall, or 3 feet if the optional auxiliary lens mount will be added. Center the
projector with the theatre screen (
) if possible (see
Figure 2-11
left
). If forced to be off-center (such as
when a film projector is already present), try to optimize
aim
as shown in
Figure 2-11
. This will slightly
increase side keystoning, but will minimize horizontal lens offset required.
NOTE
:
Unlike film projectors, it is
best to keep the projector lens surface as parallel to the screen as possible, even if it is significantly above the
screen center.
When a particularly short throw distance combines with a very wide screen, you may have to forfeit some aim
and stay more parallel to the screen. In such cases, some lens offset can reduce the keystone distortion. Later,
when your projector is up-and-running, adjust precise image geometry and placement as described in
Section
2.10 Basic Image Alignment
.
Figure 2-11 Centering <--> (Aerial Views)
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